proporties: refactor if to ternary

lib/proportions.js

@@ -119,10 +119,7 @@ define(["chroma-js", "virtual-dom", "numeral-intl"],
       var fwDict = count(nodes, ["nodeinfo", "software", "firmware", "release"])
       var hwDict = count(nodes, ["nodeinfo", "hardware", "model"])
       var geoDict = count(nodes, ["nodeinfo", "location"], function (d) {
-        if (d)
-          return "ja"
-        else
-          return "nein"
+        return d ? "ja" : "nein"
       })
       var autoDict = count(nodes, ["nodeinfo", "software", "autoupdater"], function (d) {
         if (d === null)